<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="../vue.js"></script>
  </head>

  <body>
    <div id="app">
      <!-- 3使用组件 -->
      <h2>我是count组件</h2>
      <Count />
    </div>

    <script>
      Vue.config.prodactionTip = false;

      // 1创建组件
      const Count = Vue.extend({
        name: "Count",
        data() {
          return {
            count: 1,
          };
        },
        template: `
          <div>
            <h1>{{count}}</h1>
            <button @click="count++">累加</button>  
          </div>
        `,
      });

      const vm = new Vue({
        el: "#app",
        data() {
          return {
            count: 0,
          };
        },
        // 2注册组件
        components: {
          Count,
        },
      });
    </script>
  </body>
</html>
